I have read time and time again sbout people who take pride in not having credit, paying for everything with their debit cards or cash.
But when something happens like the Monarch situation, your credit card company will refund you. Quickly. No questions asked. Travel insurance probably won't, and although you can claim on your debit card, it's a lengthy process. Same thing applies for any other large purchase (sofa, computer equipment etc) which you make and the company goes bust before you receive your goods.